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Bouncy ladybugs (Posted on 2006-12-05) Difficulty: 2 of 5
Thirty-three ladybugs are sitting on a one meter stick. Suddenly all ladybugs start crawling either to the left or to the right with a constant speed of one meter per minute. When two ladybugs meet, they reverse directions immediately. If one arrives at the end of the stick, it falls off. Considering all possible initial configurations, what is the longest time it can take until all ladybugs have fallen off?

See The Solution Submitted by JLo    
Rating: 4.0000 (3 votes)

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  Subject Author Date
Some ThoughtsAchieving the maximumSteve Herman2012-06-09 00:22:16
AnswerK Sengupta2008-12-21 06:21:14
SolutionSolutionKen Haley2006-12-06 00:43:47
Solutionan explanationDennis2006-12-05 15:36:54
Hints/Tipsspoiler, no explanation (yet)Robby Goetschalckx2006-12-05 08:52:47
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